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When did stephan hawking find out what black holes were?
Most likely in the University classroom as an undergraduate student, that's where most people of his generation learned about black holes. But of course what he learned about was ordinary stellar black holes.It was much later when he made his own "what if" hypothesis on microscopic black holes. After solving the equations of general relativity for this case and including the effects of quantum mechanics, he made his theory including Hawking Radiation, evaporation of black holes, and their eventual explosion. This remains theoretical, as his black holes have still not been observed.
Do white holes blow?
White-holes are a theoretical hypothesis that they are the opposite of a black-hole, in which case they would push matter out into space yes.
What is sinkholes hypothesis?
a sink holes hypothesis
Is the universe made of black holes?
No. It certainly has black holes, but it has other things as well.No. It certainly has black holes, but it has other things as well.No. It certainly has black holes, but it has other things as well.No. It certainly has black holes, but it has other things as well.
Did you make black holes yet?
Black holes (in the astronomical sense) have never been made in the laboratory.
When was the Why are black holes dangerous answer made?
2010
How did Dr. Stephen Hawking discover black holes?
He did not. He made some theoretical discoveries about how black holes would probably behave; but the concept of black holes was discovered by others before him.
Are black holes made up of dark matter?
Black holes are not made up of dark matter. Dark matter is a mysterious substance that makes up a large portion of the universe's mass, but black holes are formed from the collapse of massive stars.
What is the composition of black holes, and are black holes made of matter?
Black holes are made up of a super dense core called a singularity, surrounded by an event horizon. The singularity is thought to contain all the mass of the black hole, but it is not made of matter as we know it. Instead, it is a point of infinite density where the laws of physics break down.
Will a black hole ever suck up the universe?
It is unlikely that any single black hole will ever consume even a significant part of the matter of the universe. However, the Heat Death hypothesis does allow for a large portion of the matter in the universe eventually falling into multiple black holes, and for black holes merging to form more massive black holes, possibly massing many times the Galaxy's central black hole.
Does Stephen Hawking have prove that black holes are actually white?
Not exactly - What Stephen Hawking did was to promote a rationalization for an argument that black holes and white holes have similar natures. In quantum mechanics, the black hole emits Hawking radiation, and so can come to thermal equilibrium with a gas of radiation. Since a thermal equilibrium state is time reversal invariant, Stephen Hawking argued that the time reverse of a black hole in thermal equilibrium is again a black hole in thermal equilibrium. This implies that black holes and white holes are similar objects with the same nature. However the classical consideration for white holes is that they are the reverse of black holes and theoretically support the wormhole hypothesis by pairing a black hole with a white hole.
What is a jet trail in a black hole?
It is a trail of plasma, how they are formed are not clear. Some think it is because of rotating magnetic fields. But it is of course a hypothesis. Black Holes are the hardest to answer due to the lack of observable evidence.
